Version 2.2.19
Fix bug that causes the build to break when profillingsupport=off (issue 738).
Added expose-externalize-string flag for testing extensions.
Resolve linker issues with using V8 as a DLL causing a number of problems with unresolved symbols.
Fix build failure for cctests when ENABLE_DEBUGGER_SUPPORT is not defined.
Performance improvements on all platforms.
git-svn-id: http://v8.googlecode.com/svn/trunk@4924 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/objects-inl.h b/src/objects-inl.h
index 4112f93..d6571bf 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -237,31 +237,20 @@
bool String::IsAsciiRepresentation() {
uint32_t type = map()->instance_type();
- if ((type & kStringRepresentationMask) == kConsStringTag &&
- ConsString::cast(this)->second()->length() == 0) {
- return ConsString::cast(this)->first()->IsAsciiRepresentation();
- }
return (type & kStringEncodingMask) == kAsciiStringTag;
}
bool String::IsTwoByteRepresentation() {
uint32_t type = map()->instance_type();
- if ((type & kStringRepresentationMask) == kConsStringTag &&
- ConsString::cast(this)->second()->length() == 0) {
- return ConsString::cast(this)->first()->IsTwoByteRepresentation();
- }
return (type & kStringEncodingMask) == kTwoByteStringTag;
}
-bool String::IsExternalTwoByteStringWithAsciiChars() {
- if (!IsExternalTwoByteString()) return false;
- const uc16* data = ExternalTwoByteString::cast(this)->resource()->data();
- for (int i = 0, len = length(); i < len; i++) {
- if (data[i] > kMaxAsciiCharCode) return false;
- }
- return true;
+bool String::HasOnlyAsciiChars() {
+ uint32_t type = map()->instance_type();
+ return (type & kStringEncodingMask) == kAsciiStringTag ||
+ (type & kAsciiDataHintMask) == kAsciiDataHintTag;
}